--- strace-4.8.org/process.c
+++ strace-4.8/process.c
@@ -91,6 +91,10 @@
 # include <asm/rse.h>
 #endif
 
+#ifdef __arm__
+#include <asm/ptrace.h>
+#endif
+
 #ifdef HAVE_PRCTL
 # include <sys/prctl.h>
 
